CN104072144A - High heat-conducting aluminium nitride ceramics and preparation method thereof - Google Patents
High heat-conducting aluminium nitride ceramics and preparation method thereof Download PDFInfo
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- CN104072144A CN104072144A CN201410339136.5A CN201410339136A CN104072144A CN 104072144 A CN104072144 A CN 104072144A CN 201410339136 A CN201410339136 A CN 201410339136A CN 104072144 A CN104072144 A CN 104072144A
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- aluminium nitride
- nitride ceramics
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- 229910017083 AlN Inorganic materials 0.000 title claims abstract description 46
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000000919 ceramic Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 238000000498 ball milling Methods 0.000 claims abstract description 16
- 238000000227 grinding Methods 0.000 claims abstract description 16
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 13
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 13
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 13
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000292 calcium oxide Substances 0.000 claims abstract description 11
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011787 zinc oxide Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 34
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 12
- 238000005245 sintering Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910010293 ceramic material Inorganic materials 0.000 claims description 5
- 229910052602 gypsum Inorganic materials 0.000 claims description 5
- 239000010440 gypsum Substances 0.000 claims description 5
- 239000007858 starting material Substances 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 4
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 abstract 3
- 239000000470 constituent Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000011505 plaster Substances 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The invention discloses high heat-conducting aluminium nitride ceramics and a preparation method thereof. The heat-conducting aluminum nitride ceramics comprise the following constituents in parts by weight: 35 parts to 45 parts of aluminium nitride, 22 parts to 28 parts of magnesium oxide, 2 parts to 4 parts of zinc oxide, 17 parts to 26 parts of aluminium oxide and 8 to 14 parts of calcium oxide. The preparation method of the high heat-conducting aluminum nitride ceramics comprises the following steps: (1) mixing and grinding the raw materials; (2) ball-milling the ground raw material powder with a ball mill; (3) placing the ball-milled raw material powder into a plaster mold to sinter; rising the temperature of the raw materials; remaining the temperature of the raw materials constant; cooling the aluminum nitride ceramic to indoor temperature after the constant temperature is to an end to acquire high heat-conducting ceramics.
Description
Technical field
The invention belongs to ceramic field, relate to a kind of aluminium nitride ceramics material and preparation method thereof, specifically relate to a kind of high heat conduction aluminium nitride ceramics material and preparation method thereof.
Background technology
Stupalith is with a class ceramic natural or that synthetic compound process is shaped and high temperature sintering is made.It has the advantages such as high-melting-point, high rigidity, high-wearing feature, resistance to oxidation.Can be used as structured material, cutter material, because pottery also has some special performance, can be used as again functional materials.Aluminium nitride ceramics material is a vital classification of stupalith.Its main body is alumina material, can be used as ic substrate and high-frequency insulation material in electronic industry.
The aluminium nitride ceramics material of high heat conduction possesses very high thermal conductivity, due to its outstanding thermal conductive property, has expanded the use range of aluminium nitride ceramics material.At present, the kind of the aluminium nitride ceramics material of high heat conduction is considerably less, still needs to develop the aluminium nitride ceramics material of new high heat conduction and the method for preparation thereof.
Summary of the invention
The technical problem solving: the thermal conductivity of conventional aluminium nitride ceramics material is lower, only has 15W/mK to 20W/mK, has limited the large-area applications of aluminium nitride ceramics material, can not meet preferably the needs in market.
Technical scheme: in order to achieve the above object, the invention discloses a kind of high heat conduction aluminium nitride ceramics material, described high heat conduction aluminium nitride ceramics material is comprised of according to weight ratio following composition:
A preparation method for high heat conduction aluminium nitride ceramics material, described preparation method comprises the following steps:
(1) getting aluminium nitride is that 35～45 parts, magnesium oxide are that 22～28 parts, zinc oxide are that 2～4 parts, aluminum oxide are that 17～26 parts, calcium oxide are 8～14 parts, aluminium nitride, magnesium oxide, zinc oxide, aluminum oxide, calcium oxide are carried out to mixed grinding, the order number that is ground to all powder is after 300 order～400 orders, to stop grinding, and is raw material powder;
(2) raw material powder after grinding is carried out to ball milling again, with ball mill, carry out ball milling, drum's speed of rotation is 200r/min, and the time is 2h;
(3) after ball milling, raw material powder is put into gypsum mold and carried out sintering, starting material are warming up to 1800 ℃, temperature rise rate is 100 ℃/min, after reaching temperature, constant temperature keeps 3h, after constant temperature finishes, aluminium nitride ceramics material is cooled to room temperature, prepares highly heat-conductive carbon/ceramic ceramic material.
The preparation method of described a kind of high heat conduction aluminium nitride ceramics material, described aluminium nitride is preferably 45 parts.
The preparation method of described a kind of high heat conduction aluminium nitride ceramics material, described magnesium oxide is preferably 28 parts.
The preparation method of described a kind of high heat conduction aluminium nitride ceramics material, described aluminum oxide is preferably 17 parts.
Beneficial effect: the stupalith that preparation method of the present invention prepares has very good heat conductivility, thermal conductivity can reach 60 to 73W/mK, meet preferably the demand that aluminium nitride ceramics material is used, effectively raised the use properties of aluminium nitride ceramics material.
Embodiment
The following examples can make the present invention of those skilled in the art comprehend, but do not limit the present invention in any way.
Embodiment 1
(1) getting aluminium nitride is that 35kg, magnesium oxide are that 28kg, zinc oxide are that 2kg, aluminum oxide are that 26kg, calcium oxide are 14kg, aluminium nitride, magnesium oxide, zinc oxide, aluminum oxide, calcium oxide are carried out to mixed grinding, the order number that is ground to all powder is after 400 orders, to stop grinding, and is raw material powder;
(2) raw material powder after grinding is carried out to ball milling again, with ball mill, carry out ball milling, drum's speed of rotation is 200r/min, and the time is 2h;
(3) after ball milling, raw material powder is put into gypsum mold and carried out sintering, starting material are warming up to 1800 ℃, temperature rise rate is 100 ℃/min, after reaching temperature, constant temperature keeps 3h, after constant temperature finishes, aluminium nitride ceramics material is cooled to room temperature, prepares highly heat-conductive carbon/ceramic ceramic material.
Embodiment 2
(1) getting aluminium nitride is that 40kg, magnesium oxide are that 22kg, zinc oxide are that 3kg, aluminum oxide are that 17kg, calcium oxide are 8kg, aluminium nitride, magnesium oxide, zinc oxide, aluminum oxide, calcium oxide are carried out to mixed grinding, the order number that is ground to all powder is after 400 orders, to stop grinding, and is raw material powder;
(2) raw material powder after grinding is carried out to ball milling again, with ball mill, carry out ball milling, drum's speed of rotation is 200r/min, and the time is 2h;
(3) after ball milling, raw material powder is put into gypsum mold and carried out sintering, starting material are warming up to 1800 ℃, temperature rise rate is 100 ℃/min, after reaching temperature, constant temperature keeps 3h, after constant temperature finishes, aluminium nitride ceramics material is cooled to room temperature, prepares highly heat-conductive carbon/ceramic ceramic material.
Embodiment 3
(1) getting aluminium nitride is that 45kg, magnesium oxide are that 25kg, zinc oxide are that 4kg, aluminum oxide are that 22kg, calcium oxide are 11kg, aluminium nitride, magnesium oxide, zinc oxide, aluminum oxide, calcium oxide are carried out to mixed grinding, the order number that is ground to all powder is after 400 orders, to stop grinding, and is raw material powder;
(2) raw material powder after grinding is carried out to ball milling again, with ball mill, carry out ball milling, drum's speed of rotation is 200r/min, and the time is 2h;
(3) after ball milling, raw material powder is put into gypsum mold and carried out sintering, starting material are warming up to 1800 ℃, temperature rise rate is 100 ℃/min, after reaching temperature, constant temperature keeps 3h, after constant temperature finishes, aluminium nitride ceramics material is cooled to room temperature, prepares highly heat-conductive carbon/ceramic ceramic material.The thermal conductivity of having measured the aluminium nitride ceramics material of embodiment 1, embodiment 2, embodiment 3, the thermal conductivity of the stupalith of embodiment 1 to 3 is respectively 73W/mK, 60W/mK, 68W/mK.Aluminium nitride ceramics material of the present invention has extraordinary heat conductivility.
Certainly above-described embodiment is just non exhaustive for exemplifying of illustrating that technical conceive of the present invention and feature do, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All modifications that the spirit of main technical schemes is done according to the present invention, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. a high heat conduction aluminium nitride ceramics material, is characterized in that described high heat conduction aluminium nitride ceramics material is comprised of according to weight ratio following composition:
2. the preparation method of a kind of high heat conduction aluminium nitride ceramics material according to claim 1, is characterized in that described preparation method comprises the following steps:
(1) getting aluminium nitride is that 35～45 parts, magnesium oxide are that 22～28 parts, zinc oxide are that 2～4 parts, aluminum oxide are that 17～26 parts, calcium oxide are 8～14 parts, aluminium nitride, magnesium oxide, zinc oxide, aluminum oxide, calcium oxide are carried out to mixed grinding, the order number that is ground to all powder is after 300 order～400 orders, to stop grinding, and is raw material powder;
(2) raw material powder after grinding is carried out to ball milling again, with ball mill, carry out ball milling, drum's speed of rotation is 200r/min, and the time is 2h;
(3) after ball milling, raw material powder is put into gypsum mold and carried out sintering, starting material are warming up to 1800 ℃, temperature rise rate is 100 ℃/min, after reaching temperature, constant temperature keeps 3h, after constant temperature finishes, aluminium nitride ceramics material is cooled to room temperature, prepares highly heat-conductive carbon/ceramic ceramic material.
3. the preparation method of a kind of high heat conduction aluminium nitride ceramics material according to claim 2, is characterized in that described aluminium nitride is 45 parts.
4. the preparation method of a kind of high heat conduction aluminium nitride ceramics material according to claim 2, is characterized in that described magnesium oxide is 28 parts.
5. the preparation method of a kind of high heat conduction aluminium nitride ceramics material according to claim 2, is characterized in that described aluminum oxide is 17 parts.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254286A (en) * | 2015-09-11 | 2016-01-20 | 西宁科进工业设计有限公司 | High-heat-conduction ceramic material and manufacturing method therefor |
| WO2017041282A1 (en) * | 2015-09-11 | 2017-03-16 | 许亮芳 | High thermal conductivity ceramic material and manufacturing method thereof |
| CN108864672A (en) * | 2018-07-30 | 2018-11-23 | 安徽耀达电机有限公司 | A kind of nonmetallic motor housing production method |
| CN109928764A (en) * | 2019-02-27 | 2019-06-25 | 郑海东 | A kind of LED light ceramic material and preparation method thereof |
| CN111097478A (en) * | 2019-12-31 | 2020-05-05 | 广东华科新材料研究院有限公司 | Catalyst for preparing aluminum nitride and preparation method and application thereof |
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| CN1203899A (en) * | 1998-07-08 | 1999-01-06 | 中国科学院上海硅酸盐研究所 | Method for preparing high thermal-conductivity aluminum nitride ceramics |
| CN1320010A (en) * | 2000-01-13 | 2001-10-31 | 住友电气工业株式会社 | Ceramic heater |
| CN101082090A (en) * | 2007-07-01 | 2007-12-05 | 合肥工业大学 | Preparation method of Mo/AIN multi-phase microwave absorbing material |
| CN101525238A (en) * | 2009-03-20 | 2009-09-09 | 清华大学 | Preparation method for low-oxygen spherical aluminum nitride powder |
| CN102482164A (en) * | 2009-09-04 | 2012-05-30 | 东洋炭素株式会社 | Ceramic carbon composite material and method for producing same, and ceramic-coated ceramic carbon composite material and method for producing same |
-
2014
- 2014-07-16 CN CN201410339136.5A patent/CN104072144A/en active Pending
Patent Citations (5)
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| CN1203899A (en) * | 1998-07-08 | 1999-01-06 | 中国科学院上海硅酸盐研究所 | Method for preparing high thermal-conductivity aluminum nitride ceramics |
| CN1320010A (en) * | 2000-01-13 | 2001-10-31 | 住友电气工业株式会社 | Ceramic heater |
| CN101082090A (en) * | 2007-07-01 | 2007-12-05 | 合肥工业大学 | Preparation method of Mo/AIN multi-phase microwave absorbing material |
| CN101525238A (en) * | 2009-03-20 | 2009-09-09 | 清华大学 | Preparation method for low-oxygen spherical aluminum nitride powder |
| CN102482164A (en) * | 2009-09-04 | 2012-05-30 | 东洋炭素株式会社 | Ceramic carbon composite material and method for producing same, and ceramic-coated ceramic carbon composite material and method for producing same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254286A (en) * | 2015-09-11 | 2016-01-20 | 西宁科进工业设计有限公司 | High-heat-conduction ceramic material and manufacturing method therefor |
| WO2017041282A1 (en) * | 2015-09-11 | 2017-03-16 | 许亮芳 | High thermal conductivity ceramic material and manufacturing method thereof |
| CN108864672A (en) * | 2018-07-30 | 2018-11-23 | 安徽耀达电机有限公司 | A kind of nonmetallic motor housing production method |
| CN109928764A (en) * | 2019-02-27 | 2019-06-25 | 郑海东 | A kind of LED light ceramic material and preparation method thereof |
| CN111097478A (en) * | 2019-12-31 | 2020-05-05 | 广东华科新材料研究院有限公司 | Catalyst for preparing aluminum nitride and preparation method and application thereof |
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